R&S SGT100A User Manual page 38

®
R&S SGT100A
7.5.6 Edit I/Q Envelope Shape Settings...............................................................................175
7.5.7 Polynomial Coefficients Setting...................................................................................176
7.6 Applying Digital Predistortion................................................................................. 178
7.6.1 Required Options........................................................................................................ 179
7.6.2 About Digital Predistortion...........................................................................................179
7.6.2.1 Defining the Power Level of the Generated Signal..................................................... 180
7.6.2.2 Defining the Correction Values................................................................................... 180
Polynomial Function....................................................................................................180
Shaping Table............................................................................................................. 182
Normalized Data......................................................................................................... 182
Predistortion Function in Raw Data Format................................................................ 183
7.6.2.3 Finding Out the Correction Values.............................................................................. 184
7.6.3 Digital Predistortions AM/AM and AM/PM Settings.....................................................184
7.6.3.1 General Settings......................................................................................................... 185
7.6.3.2 Predistortion Settings.................................................................................................. 187
7.6.3.3 Edit Predistortion Table Settings.................................................................................191
7.6.3.4 Polynomial Coefficients Settings.................................................................................193
7.6.3.5 Normalized Data Settings........................................................................................... 196
7.7 RF Settings................................................................................................................ 198
7.7.1 Overview of RF Signal................................................................................................ 198
7.7.2 Operation Mode ......................................................................................................... 198
7.7.3 Frequency/ Phase....................................................................................................... 199
7.7.4 Local Oscillator (LO) Coupling.................................................................................... 200
7.7.4.1 Phase Coherence....................................................................................................... 200
7.7.4.2 Local Oscillator (LO) Coupling Settings...................................................................... 201
7.7.5 Reference Oscillator....................................................................................................202
7.7.6 RF Level Settings........................................................................................................205
7.7.6.1 RF Level Settings........................................................................................................206
7.7.6.2 Attenuator....................................................................................................................209
7.7.6.3 Power-On Settings...................................................................................................... 210
7.7.6.4 ALC ............................................................................................................................ 211
7.7.6.5 User Correction Settings............................................................................................. 212
7.7.6.6 Filling the Correction List Automatically...................................................................... 216
User Manual 1176.8674.02 ─ 07
Contents
7